title: Facial mimics simulation using MRI and finite element analysis.
abstract: Recent research studies aimed to simulate facial expressions or motions due to muscle contraction using biomechanical models ranging from basic to advanced muscle constitutive models. However, these models are based on generic geometries and there is a lack of experimental data for the numerical simulation as well as for the model validation in a clinical context. The objective of our present study was to perform facial mimics simulation using subject specific data derived from MRI technique. Zygomaticus major muscle is modelled as a transversely isotropic hyperelastic material. Then the resulting effect of its shortening and lengthening process on the facial mimics simulation was performed using Finite Element Analysis. Simulation results were presented and discussed. Such study will be of interest for defining objective criteria to evaluate the facial disfigurement patients and to perform the functional rehabilitation.
authors.forename: Tien Tuan
authors.initials: TT
authors.lastname: Dao
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Dakpé
authors.forename: Philippe
authors.initials: P
authors.lastname: Pouletaut
authors.forename: Bernard
authors.initials: B
authors.lastname: Devauchelle
authors.forename: Marie Christine
authors.initials: MC
authors.lastname: Ho Ba Tho
mesh_terms: D003198:Computer Simulation; D005149:Facial Expression; D005152:Facial Muscles / Q000502:physiology; D020342:Finite Element Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging; D008954:Models, Biological; D009119:Muscle Contraction / Q000502:physiology; D012904:Smiling